10. Insert a small screwdriver between the two halves of the upper plastic cover. Separate the two halves. Use caution to
avoid scratching the covers or damaging the lower cover snap pins.
11. Lower the rail to the 14 inch locking position.
12. Position adjustable supports under the siderail to support the siderail when you remove the central column.
13. Using a #2 Phillips screwdriver, remove the ten screws (J) that secure the upper end of the posts and the central column
to the upper structural member (K) (Figure 29). Save the screws.
14. Using a 1/2” socket, remove the two bolts and two washers (L) that secure the upper end of the two guide posts to the
structural member (K) (Figure 29). Save the bolts and washers.
15. Remove and save the lower plastic cover.
16. Lift and remove the central column. Use caution to avoid damaging the seal. Discard the column.
N
No
otte
e -- You must replace the seal if it is damaged during the procedure. Do not install a damaged seal.
17. Using a 3/32” Allen wrench, remove the set screw (A) that secures the handle to the central column shaft (Figure 26).
Remove the handle and install it on the new central column.
18. Install the new column. Insert the bottom end into the brake shoe and slide the column until the bottom is seated in the
cavity (W) of the lower plastic cover. Use caution to avoid damaging the seal while you insert the column into the lower
plastic cover. See the note following step 15. While the column slides though the brake shoe, rotate the handle to open
the lock stops (N) when the column reaches each of the fixed stops (Figure 29).
B
A
A
B
A
B
C
F
W
E
A
G
G
D
K
H
L
L
J
J
M
P
N
U,V
U,V
R
S
T
O
Q
F
Fiig
gu
urre
e 2
29
9 –– S
Siid
de
erra
aiill cce
en
nttrra
all cco
ollu
um
mn
n rre
ep
plla
acce
em
me
en
ntt ((ffiixxe
ed
d a
acccce
essss d
do
oo
orrss))
19. Reverse steps to reinstall.
20. Check the stop catch positions and complete steps 20-25 if adjustments are needed.
N
No
otte
e -- Proper adjustment centers the stop catches and evenly distributes the load of the rail. If the stop catches are not
centered, they will rub against the plastic extrusion.
1900-009-002 Rev AA.6
47
EN
